How severe is CVE-2016-4561?

CVE-2016-4561 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2016-4561 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-4561?

CVE-2016-4561 primarily affects Debian Debian Linux. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-4561?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2016-4561 published?

CVE-2016-4561 was published on 2016-05-10 and last updated on 2026-06-17.

CVE-2016-4561

CVE-2016-4561 is a medium-severity vulnerability in Debian Debian Linux with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Debian Debian Linux
Published: 2016-05-10
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in the cgierror function in CGI.pm in ikiwiki before 3.20160506 might allow remote attackers to inject arbitrary web script or HTML via unspecified vectors involving an error message.

Frequently asked questions

What is CVE-2016-4561?: Cross-site scripting (XSS) vulnerability in the cgierror function in CGI.pm in ikiwiki before 3.20160506 might allow remote attackers to inject arbitrary web script or HTML via unspecified vectors involving an error message.
How severe is CVE-2016-4561?: CVE-2016-4561 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2016-4561 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-4561?: CVE-2016-4561 primarily affects Debian Debian Linux. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-4561?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-4561 published?: CVE-2016-4561 was published on 2016-05-10 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:ikiwiki:ikiwiki:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

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